UA4817 IAH → AMA
United Airlines · Houston, TX to Amarillo, TX · 163 flights observed, 2025-07-02 to 2026-06-29 · 518 mi
UA4817 covers more than one route in the data window — the stats below are for IAH → AMA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
82%
Median delay
-12 min
90th percentile
+37 min
Cancellation rate
0%
How often is UA4817 on time?
Across 163 flights on IAH → AMA from 2025-07-02 to 2026-06-29, UA4817 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +37 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 133 | 82% |
| 16-30 min | 11 | 7% |
| 31-60 min | 8 | 5% |
| 61-120 min | 6 | 4% |
| 2+ hrs | 5 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 26 | 77% | +10 min |
| 2025-08 | 25 | 80% | +12 min |
| 2025-09 | 22 | 91% | -10 min |
| 2025-10 | 25 | 96% | -13 min |
| 2025-11 | 1 | 100% | -18 min |
| 2025-12 | 14 | 93% | -6 min |
| 2026-01 | 5 | 80% | -3 min |
| 2026-04 | 1 | 100% | 0 min |
| 2026-05 | 23 | 83% | -6 min |
| 2026-06 | 21 | 52% | +26 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 26 | 81% |
| Tue | 6 | 100% |
| Wed | 16 | 94% |
| Thu | 29 | 79% |
| Fri | 29 | 66% |
| Sat | 29 | 93% |
| Sun | 28 | 79% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…